Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > sci.physics > #566274
| From | Odd Bodkin <bodkinodd@gmail.com> |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: H bonds get stronger when asymmetry is restored |
| Date | 2016-03-28 15:04 -0500 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <ndc2ok$2m3$1@gioia.aioe.org> (permalink) |
| References | <39d1fea0-9ee8-4b72-bd3c-b286cec57959@googlegroups.com> <nd67te$c7g$1@dont-email.me> <ndbd17$pog$1@gioia.aioe.org> <ndc17h$1vcu$1@gioia.aioe.org> |
On 3/28/2016 2:38 PM, Odd Bodkin wrote: > On 3/28/2016 8:53 AM, Odd Bodkin wrote: >> McGinn has a small problem with data. Diffusion data for example. Let's >> suppose we take McGinn's stance that, besides molecules, a gas might >> contain clusters of molecules called microdroplets, where we have >> defined "gas" to be any substance that obeys Boyle's/Mariotte's Law and >> Charles'/Guy-Lussac's Law, is not a bulk liquid or bulk solid, and >> consists of some kind of particles. Indeed, when those laws were >> established, the notion of molecules or atoms were not central or >> assumed. In fact, even in kinetic theory, the basic assumptions are >> wholly consistent with this notion of gas, as long as the microdroplets >> don't condense or aggregate; all that's needed is some sort of particle >> with long travel times between interactions and elastic collisions, >> which microdroplets are presumed to satisfy. (If they don't, then the >> microdroplet notion fails on not matching these gas laws.) >> >> Directly from kinetic theory, the rms speed of the particles is given by >> v=sqrt(3PV/Nm) >> or, taking a standard pressure and volume, >> v ~ 1/sqrt(m). >> This is pretty straightforward to use, and one can obtain that at STP, v >> for oxygen molecules should be 460 m/s, and because hydrogen molecules >> are 16 times lighter, v for hydrogen molecules will be 1840 m/s. >> >> This rms speed affects everything from the speed of sound (which is why >> the pitch in an organ pipe filled with helium is higher than the pitch >> in an organ pipe filled with air) to diffusion. The diffusion >> coefficient is directly proportional to the thermal speed. >> >> Thus, one can test McGinn's hypothesis of water microdroplets as >> particles in gas, simply by measuring the relative diffusion in a >> heterogeneous gas. For example, the molecular weight of water is 18 >> g/mol and the molecular weight of neon is 20 g/mol. A neon-water-vapor >> mix will then diffuse with both components at approximately the same >> diffusion rate. But if we suppose that the water is actually in >> microdroplet particles of, say, 16 molecules or so, then the diffusion >> rate for water would be 4 times smaller than that of neon. You could do >> the same diffusion test for argon-water-vapor or xenon-water-vapor mixes >> to determine the average weight of the water vapor particles. You could >> do the same with water vapor and toluene (mol. wt = 92 g/mol) or any >> other similar gaseous solvent of choice. >> >> McGinn might be deeply grieved to learn that relative diffusion >> measurements have already been done, but would recommend that he collect >> the data himself so that there is no doubt in his mind. >> >> -- >> Odd Bodkin --- maker of fine toys, tools, tables > > Solving Tornadoes responded with: > "Phoney science always hides behind phoney complexity." > > There is nothing complex about this. It is FRESHMAN science. And since you will likely ask for references: Halliday and Resnick, Fundamentals of Physics, section 23-4 Giancoli, Physics for Scientists and Engineers, section 18-7 Asimov, The History of Physics, section 14-2 Now, I would love to have you tell me these books are imaginary and don't exist. > > If you do not know, or did not know, that measurable quantities like > diffusion rates and the fundamental frequencies of organ pipes are > strongly related to rms thermal speeds of the particles.... > > If you do not know, or did not know, that the rms thermal speeds of > particles is inversely related to the square root of the mass of those > particles.... > > If you do not know, or did not know, that you can therefore easily and > unambiguously MEASURE the mass of particles -- especially in comparison > with other particles like xenon or toluene gas -- by these means... > > If you do not know, or did not know, that this evidence CLEARLY shows > particles of water at STP are monomolecular.... > > Then you learned NOTHING from your introductory science courses at > whatever institution where you claim to have taken them. I do not blame > the institution. I blame your inability to pay attention. > > Now, since you CAN do the experiments to measure diffusion of various > gas mixtures yourself, and since you can measure the fundamental > frequencies of organ pipes filled with various gas mixtures yourself, it > should be relatively straightforward to remind yourself of the basic > science here and what the relationship is between relative diffusion > rates and relative particle mass and what the relationship is between > relative fundamental frequency and relative particle mass, you should > probably commit to do the damned measurements yourself, so that you only > have yourself to point to when the results come out surprising. Or you > can find the existing data, but if you don't want to do that, then you > certainly should perform the easy experiments yourself. > -- Odd Bodkin --- maker of fine toys, tools, tables
Back to sci.physics | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
H bonds get stronger when asymmetry is restored James McGinn <jimmcginn9@gmail.com> - 2016-03-25 17:04 -0700
Re: H bonds get stronger when asymmetry is restored "Y.Porat" <y.y.porat@gmail.com> - 2016-03-26 01:38 -0700
Re: H bonds get stronger when asymmetry is restored James McGinn <jimmcginn9@gmail.com> - 2016-03-26 08:14 -0700
Re: H bonds get stronger when asymmetry is restored "Y.Porat" <y.y.porat@gmail.com> - 2016-03-27 23:10 -0700
Re: H bonds get stronger when asymmetry is restored Solving Tornadoes <solvingtornadoes@gmail.com> - 2016-03-27 23:37 -0700
Re: H bonds get stronger when asymmetry is restored Poutnik <poutnik4nntp@gmail.com> - 2016-03-26 15:58 +0100
Re: H bonds get stronger when asymmetry is restored Odd Bodkin <bodkinodd@gmail.com> - 2016-03-28 08:53 -0500
Re: H bonds get stronger when asymmetry is restored Solving Tornadoes <solvingtornadoes@gmail.com> - 2016-03-28 11:40 -0700
Re: H bonds get stronger when asymmetry is restored Odd Bodkin <bodkinodd@gmail.com> - 2016-03-28 14:38 -0500
Re: H bonds get stronger when asymmetry is restored Solving Tornadoes <solvingtornadoes@gmail.com> - 2016-03-28 12:49 -0700
Re: H bonds get stronger when asymmetry is restored Odd Bodkin <bodkinodd@gmail.com> - 2016-03-28 15:04 -0500
Re: H bonds get stronger when asymmetry is restored Solving Tornadoes <solvingtornadoes@gmail.com> - 2016-03-28 13:38 -0700
Re: H bonds get stronger when asymmetry is restored Odd Bodkin <bodkinodd@gmail.com> - 2016-03-28 15:54 -0500
Re: H bonds get stronger when asymmetry is restored Odd Bodkin <bodkinodd@gmail.com> - 2016-03-28 16:06 -0500
Re: H bonds get stronger when asymmetry is restored Solving Tornadoes <solvingtornadoes@gmail.com> - 2016-03-28 14:24 -0700
Re: H bonds get stronger when asymmetry is restored Solving Tornadoes <solvingtornadoes@gmail.com> - 2016-03-28 14:19 -0700
csiph-web